756645432 has 16 divisors (see below), whose sum is σ = 1891613640. Its totient is φ = 252215136.

The previous prime is 756645431. The next prime is 756645457. The reversal of 756645432 is 234546657.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (756645431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15763423 + ... + 15763470.

Almost surely, 2^756645432 is an apocalyptic number.

It is an amenable number.

756645432 is an abundant number, since it is smaller than the sum of its proper divisors (1134968208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

756645432 is a wasteful number, since it uses less digits than its factorization.

756645432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31526902 (or 31526898 counting only the distinct ones).

The product of its digits is 604800, while the sum is 42.

The square root of 756645432 is about 27507.1887331294. The cubic root of 756645432 is about 911.2358653990.

The spelling of 756645432 in words is "seven hundred fifty-six million, six hundred forty-five thousand, four hundred thirty-two".